DBR! Velocity Stacks 8V / 16v

New product alert: DBR! Velocity Stacks in PPS carbon-fiber reinforced polymer. PPS-CF has excellent heat resistance, strength and long-term durability. Unlike aluminum stacks, PPS-CF resists heat soak and helps keep incoming air cooler.

The extended bellmouth design allows smoother airflow into the carburetor and looks crazy cool, grabbing inspiration from the long out of production Herbst Tuning trumpets from 30 years ago. Longer stacks are especially beneficial for increasing midrange torque and throttle response while still supporting strong top-end power.

Depending on if it’s for a counter flow 8V or a 16V / ABA the letters will face accordingly please select which motor they are going on during checkout.

What is PPS-CF?

PPS-CF (Carbon Fiber-Reinforced Polyphenylene Sulfide) is an industrial-grade 3D printing filament valued for its exceptional heat resistance, metal-like rigidity, and chemical resistance. It is primarily used for demanding engineering, automotive, and aerospace applications that require parts to endure harsh, high-temperature environments.

Key Characteristics
* Ultra-High Heat Resistance: Features a heat deflection temperature of up to 264°C and can operate continuously above 200°C without deforming.
* Extreme Chemical Resistance: Resistant to solvents, acids, alkalis, and organic salts, second only to PTFE.
* Superior Flame Retardancy: Achieves a UL-94 V-0 flame retardant rating for high safety.
* Low Moisture Absorption: Extremely low moisture absorption rate (about 0.05%), keeping it dimensionally stable in humid conditions.